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https://github.com/xmonad/xmonad-contrib.git
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b1b3c4c469
With XDG support so firmly ingrained now, it's about time we stop hard-coding the configuration path in the docs.
135 lines
4.3 KiB
Haskell
135 lines
4.3 KiB
Haskell
{-# LANGUAGE LambdaCase #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Actions.SpawnOn
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-- Description : Modify a window spawned by a command.
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-- Copyright : (c) Spencer Janssen
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-- License : BSD
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--
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-- Maintainer : Spencer Janssen <spencerjanssen@gmail.com>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Provides a way to modify a window spawned by a command(e.g shift it to the workspace
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-- it was launched on) by using the _NET_WM_PID property that most windows set on creation.
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-- Hence this module won't work on applications that don't set this property.
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--
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-----------------------------------------------------------------------------
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module XMonad.Actions.SpawnOn (
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-- * Usage
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-- $usage
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Spawner,
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manageSpawn,
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manageSpawnWithGC,
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spawnHere,
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spawnOn,
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spawnAndDo,
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shellPromptHere,
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shellPromptOn
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) where
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import System.Posix.Types (ProcessID)
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import XMonad
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import XMonad.Prelude
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import qualified XMonad.StackSet as W
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import XMonad.Hooks.ManageHelpers
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import XMonad.Prompt
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import XMonad.Prompt.Shell
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import qualified XMonad.Util.ExtensibleState as XS
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import XMonad.Util.Process (getPPIDChain)
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-- $usage
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-- You can use this module with the following in your @xmonad.hs@:
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--
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-- > import XMonad.Actions.SpawnOn
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--
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-- > main = do
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-- > xmonad def {
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-- > ...
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-- > manageHook = manageSpawn <> manageHook def
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-- > ...
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-- > }
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--
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-- To ensure that application appears on a workspace it was launched at, add keybindings like:
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--
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-- > , ((mod1Mask,xK_o), spawnHere "urxvt")
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-- > , ((mod1Mask,xK_s), shellPromptHere def)
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--
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-- The module can also be used to apply other manage hooks to the window of
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-- the spawned application(e.g. float or resize it).
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--
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-- For detailed instructions on editing your key bindings, see
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-- <https://xmonad.org/TUTORIAL.html#customizing-xmonad the tutorial>.
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newtype Spawner = Spawner {pidsRef :: [(ProcessID, ManageHook)]}
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instance ExtensionClass Spawner where
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initialValue = Spawner []
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-- | Get the current Spawner or create one if it doesn't exist.
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modifySpawner :: ([(ProcessID, ManageHook)] -> [(ProcessID, ManageHook)]) -> X ()
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modifySpawner f = XS.modify (Spawner . f . pidsRef)
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modifySpawnerM :: ([(ProcessID, ManageHook)] -> X [(ProcessID, ManageHook)]) -> X ()
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modifySpawnerM f = XS.modifyM (fmap Spawner . f . pidsRef)
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-- | Provides a manage hook to react on process spawned with
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-- 'spawnOn', 'spawnHere' etc.
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manageSpawn :: ManageHook
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manageSpawn = manageSpawnWithGC (return . take 20)
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manageSpawnWithGC :: ([(ProcessID, ManageHook)] -> X [(ProcessID, ManageHook)])
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-- ^ function to stop accumulation of entries for windows that never set @_NET_WM_PID@
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-> ManageHook
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manageSpawnWithGC garbageCollect = pid >>= \case
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Nothing -> mempty
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Just p -> do
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Spawner pids <- liftX XS.get
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ppid_chain <- io $ getPPIDChain p
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case mapMaybe (`lookup` pids) ppid_chain of
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[] -> mempty
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mh : _ -> liftX (gc p) >> mh
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where
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gc p = modifySpawnerM $ garbageCollect . filter ((/= p) . fst)
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mkPrompt :: (String -> X ()) -> XPConfig -> X ()
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mkPrompt cb c = do
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cmds <- io getCommands
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mkXPrompt Shell c (getShellCompl cmds $ searchPredicate c) cb
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-- | Replacement for Shell prompt ("XMonad.Prompt.Shell") which launches
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-- application on current workspace.
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shellPromptHere :: XPConfig -> X ()
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shellPromptHere = mkPrompt spawnHere
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-- | Replacement for Shell prompt ("XMonad.Prompt.Shell") which launches
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-- application on given workspace.
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shellPromptOn :: WorkspaceId -> XPConfig -> X ()
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shellPromptOn ws = mkPrompt (spawnOn ws)
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-- | Replacement for 'spawn' which launches
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-- application on current workspace.
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spawnHere :: String -> X ()
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spawnHere cmd = withWindowSet $ \ws -> spawnOn (W.currentTag ws) cmd
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-- | Replacement for 'spawn' which launches
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-- application on given workspace.
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spawnOn :: WorkspaceId -> String -> X ()
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spawnOn ws = spawnAndDo (doShift ws)
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-- | Spawn an application and apply the manage hook when it opens.
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spawnAndDo :: ManageHook -> String -> X ()
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spawnAndDo mh cmd = do
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p <- spawnPID $ mangle cmd
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modifySpawner ((p,mh) :)
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where
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-- TODO this is silly, search for a better solution
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mangle xs | any (`elem` metaChars) xs || "exec" `isInfixOf` xs = xs
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| otherwise = "exec " ++ xs
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metaChars = "&|;"
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